source-controller/Dockerfile

43 lines
1.1 KiB
Docker

# Docker buildkit multi-arch build requires golang alpine
FROM golang:1.15-alpine as builder
WORKDIR /workspace
# copy api submodule
COPY api/ api/
# copy modules manifests
COPY go.mod go.mod
COPY go.sum go.sum
# cache modules
RUN go mod download
# copy source code
COPY main.go main.go
COPY controllers/ controllers/
COPY pkg/ pkg/
COPY internal/ internal/
# build without specifing the arch
RUN CGO_ENABLED=0 go build -a -o source-controller main.go
FROM alpine:3.12
# link repo to the GitHub Container Registry image
LABEL org.opencontainers.image.source="https://github.com/fluxcd/source-controller"
RUN apk add --no-cache ca-certificates tini
COPY --from=builder /workspace/source-controller /usr/local/bin/
# Create minimal nsswitch.conf file to prioritize the usage of /etc/hosts over DNS queries.
# https://github.com/gliderlabs/docker-alpine/issues/367#issuecomment-354316460
RUN [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf
RUN addgroup -S controller && adduser -S -g controller controller
USER controller
ENTRYPOINT [ "/sbin/tini", "--", "source-controller" ]